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Homework Help: Redox Titrations

  1. Oct 22, 2006 #1
    I have many problesm with this question. Can somone help me please?

    In a titration of patasium permanganate soloution with acidified sodium nitrate solution

    MnO4- + BO2- H+ -----> Mn+2 + NO3- +H2O

    45 ml of 0.05M of KMnO4 reacts complitely with 20.0 mL of NaNO2 solution.

    Calculate the molat concentration of sodium nitrate.

    Please give me a hand with this. I relly need help to pass my chimetry curse.
     
  2. jcsd
  3. Oct 22, 2006 #2

    Borek

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    Staff: Mentor

    You must start with balanced equation. Once it is balanced calculate number of moles permanganate used and stoichiometric amount of sodium nitrate. Latter divided by 0.02L will give you concentration.
     
  4. Oct 23, 2006 #3
    Sorry but I kinda dontt understand how to get the stoichiometric amount of sodium nitrate. And what do I have to divide by 0.02L. Sorry it's just I kinda not that good at chemestry.
     
    Last edited: Oct 23, 2006
  5. Oct 23, 2006 #4

    Borek

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    Staff: Mentor

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